Innovative Production Machines and Systems Conference - ICME

Presentation request!! or You could win some €€ cash $$!!

Baciu — Sat, 08 Jul 2006 16:09:28 +0100

Dear Authors,

Thank you very much for all of you who have submitted their video presentations in this Special Session on "Innovative and Competitive Manufacturing Engineering - ICME"!

As the co-chair of this session, I strongly encourage the rest of the remaining authors to submit their video presentations as soon as possible (ASAP) as came voice to me from the Organising Committee that there will be a prize of EURO 300 for the best video presentation.

Welcome to the Special Session on "Innovative and Competitive Manufacturing Engineering - ICME"

Baciu — Mon, 03 Jul 2006 10:32:53 +0100

Dear authors and participants,

I have the pleasure to welcome you to the Special Session on "Innovative and Competitive Manufacturing Engineering - ICME" of the IPROMS 2006 conference.

Congratulations to all authors! Your papers have been accepted and published on the IPROMS 2006 conference web site and book of proceedings. They promote valuable pieces of work and I am sure they will be of great interest to all participants. Our session includes 12 high quality papers from different areas of research.

Advanced signal processing in acoustic emission monitoring systems for machining technology

Baciu — Mon, 03 Jul 2006 14:23:30 +0100

This work is focused on the application of acoustic emission (AE) based monitoring systems to machining processes. It describes the most common advanced signal processing methods used in this type of systems such as continuous and discrete transforms (Fourier, Gabor and Wavelet) and statistical analysis methods (amplitude distribution method and the entropic distance method). Besides, some of the most relevant papers illustrating the mentioned signal processing methods have been discussed. The principal machining technology aspects considered for AE based sensor catastrophic tool failure and chip formation.

CBN Grinding Wheel Inventory Sizing through Non-Shortsighted Flexible Tool Management Strategies

Doriana — Mon, 03 Jul 2006 12:19:07 +0100

The development and implementation of a Multi-Agent Tool Management System (MATMS) is the focus of a wide-range research project on agent-based automatic tool procurement in supply networks. The MATMS operates in a context where an aircraft engine producer (customer) requires from external tool manufacturers (suppliers) the performance of dressing operations on worn-out CBN grinding wheels for Ni base alloy turbine blade fabrication. In this paper, a novel non-shortsighted Flexible Tool Management Strategy (NS-FTMS), integrated in the MATMS as domain specific problem solving function of the intelligent agent responsible for optimal tool inventory sizing and control, is presented as an alternative to both traditional tool management and previous FTMS approaches.

Springback prediction with FEM analysis of advanced high strength steel stamping process

soroka — Sun, 02 Jul 2006 14:02:18 +0100

S. Al Azraq, R. Teti, J. Costa

In many manufacturing processes involving sheet metal fabrication, springback is a major concern that makes tool design a very complex task. New demands have led to an increase in the use of Advanced High Strength Steel (AHSS) as work material. An increase in strength decreases the formability of the material and increases the springback behaviour. The aim of the numerical simulation carried out in this paper is to verify the stamping process and the shape of the final component for studying springback of AHSS. Finally, a test case of a simple profile stamping process was analysed using the incremental approach of the AutoForm 4.04 Incremental software code for two different AHSS materials: Dual-Phase (DP 600) and Transformation-Induced Plasticity (TRIP 800).

Neural network based system for decision making support in orthodontic extractions

Doriana — Sun, 02 Jul 2006 12:28:07 +0100

The application of an intelligent computation approach to the support of the clinical decision making on orthodontic extractions is illustrated in this work. Artificial neural networks trained using cephalometric and orthodontic cast measurements can provide a valuable support in the extraction therapeutical option in orthodontics.

Personalised Ankle-Foot Orthoses design based on Reverse Engineering

Le — Wed, 28 Jun 2006 22:08:21 +0100

Abstract:

Drop Foot (DF) and Foot Drop is an interchangeable term that describes an abnormal neuromuscular disorder that affects the patient's ability to raise their foot at the ankle. Ankle-Foot Orthoses (AFOs) are devices intended to assist or to restore the motions of the ankle-foot complex. In this paper, personalised AFO development which is based on 3D models of the patient’s ankle-foot complex is introduced. Methods of reconstructing 3D models of the ankle-foot based on Reverse Engineering were fully investigated from which the new personalised AFOs were proposed. These AFOs were designed to assist the ankle flexion-extension for DF patients.

Optimization of friction stir welds of aluminium alloys

charles — Tue, 27 Jun 2006 12:29:56 +0100

The effect of rotating and welding speed on the mechanical properties of AA6056 joints made by Friction Stir Welding are investigated. Different welds with rotating speed of 1000 and 1600 RPM and travel speeds of 230, 325 and 460 mm/min were produced. An ultrasonic (UT) non-destructive testing (NDT) procedure was applied to characterize the presence of possible weld defects prior to mechanical destructive testing. The joint mechanical properties were evaluated by means of static tensile tests and fatigue tests. Both static and fatigue properties show an appreciable improvement as both travel and rotating speed increase. However, in the case of maximum travel speed and maximum rotating speed, the welded specimens may display weldment defects that reduce the evaluated fatigue limit for such processing conditions. The correlation between process parameters and weldment static properties was carried out through an analysis of variance (ANOVA) of the data.

Quality evaluation of thermoplastic composite material single-lap joints

Baciu — Tue, 27 Jun 2006 12:26:41 +0100

The joining of glass fibre reinforced polymer (GFRP) matrix composite materials by structural bonding still presents difficulties due to the adopted bonding process, the interface properties and the control of the adhesive thickness. In this paper, the first results of a study on the characterisation of single lap bonded joints made of glass fibre reinforced propylene thermoplastic matrix composite laminates are presented. Two different adhesive types commercially available for thermoplastic polymers have been utilized. The considered factors have been the joint static strength and the joint quality evaluated through advanced ultrasonic nondestructive evaluation.

Optimization of a hydroforming process to realize asymmetrical aeronautical components by FE analysis

charles — Tue, 27 Jun 2006 12:24:27 +0100

Hydroforming process is an effective method for manufacturing complicated parts. This process is quite sensitive to the characteristics of the pressure growth laws and the friction between the sheet and the elements of the tooling. In this work a numerical simulation has been carried out using the explicit finite element code LS-DYNA